WO2023145123A1

WO2023145123A1 - Vehicle floor structure

Info

Publication number: WO2023145123A1
Application number: PCT/JP2022/033094
Authority: WO
Inventors: 遼後藤
Original assignee: いすゞ自動車株式会社
Priority date: 2022-01-28
Filing date: 2022-09-02
Publication date: 2023-08-03
Also published as: JP2023110709A; JP7329198B2

Abstract

A passage floor panel 10 integrally has: a passage bottom plate part 6 that intersects with the vertical direction; and left and right passage bottom plate flange parts 11L, 11R that bend downward from both vehicle-width-direction end edge parts 6A of the passage bottom plate part 6. Left and right passage side panels 12L, 12R integrally have: left and right passage side plate parts 7L, 7R that stand upright at both vehicle-width-direction sides of the passage floor panel 10 and extend upward further than the passage bottom plate part 6; and left and right below-passage-side-plate flange parts 13L, 13R that extend downward from the lower end edges of the left and right passage side plate parts 7L, 7R. The passage bottom plate part 6 and the left and right passage side plate parts 7L, 7R divide a passage 8 that extends in the vehicle front-rear direction. The left and right passage bottom plate flange parts 11L, 11R and the left and right below-passage-side-plate flange parts 13L, 13R overlap in the vehicle width direction to be in surface contact with each other and are joined intermittently or continuously along the vehicle front-rear direction.

Description

vehicle floor structure

The present disclosure relates to a vehicle floor structure.

Patent Document 1 describes a vehicle cab structure in which a doorway (opening) is formed on the rear surface of the cab so that the passenger can move directly between the front compartment and the rear luggage compartment.

The floor panel that defines the lower part of the passenger compartment has a front floor portion, left and right kick-up portions, left and right rear floor portions, a passage bottom plate portion, and left and right passage side plate portions. The front floor portion extends rearward from the lower front end portion of the passenger compartment. The left and right kick-up portions are arranged on both left and right sides behind the front portion of the floor and extend rearward and upward from the rear edge of the front portion of the floor. Left and right floor rear portions extend rearward from upper edges of the left and right kick-up portions. The passage bottom plate portion extends rearward from a central region in the vehicle width direction of the rear portion of the front portion of the floor. The left and right passage side plate portions stand along the left and right edge portions of the passage bottom plate portion. Left and right seats on which occupants are seated are arranged above the left and right floor rear portions, respectively.

The passage bottom plate forms the floor surface of the passage extending in the longitudinal direction at the center of the passenger compartment in the vehicle width direction (between the left and right seats). The aisle bottom plate is located at a height lower than the rear left and right floors (almost at the same height as the front of the floor), and extends from the front of the floor to the left and right kick-up sections and between the left and right rear floors. through to the doorway at the rear of the cab.

Japanese Patent Application Laid-Open No. 2021-54151

In a floor panel having an aisle bottom plate portion as in Patent Document 1, if the aisle bottom plate portion has low rigidity, the aisle bottom plate portion may be deformed by the load from an occupant walking in the aisle. Deformation of the passage bottom plate can be suppressed by increasing the thickness of the passage bottom plate or adding reinforcing members. and increase costs.

Therefore, an object of the present disclosure is to increase the rigidity of the floor surface of the aisle while suppressing the increase in weight and cost of the cab.

In order to achieve the above object, the floor structure of the present disclosure includes an aisle floor panel and left and right aisle side panels. The passage floor panel integrally has a passage bottom plate portion that intersects with the vertical direction, and left and right passage bottom plate flange portions that bend downward from both end edges in the vehicle width direction of the passage bottom plate portion. The left and right passage-side panels include left and right passage-side plate portions that stand up on both sides of the passage floor panel in the vehicle width direction and extend upward from the passage bottom plate portion, and left and right passage-side plates that extend downward from the lower edges of the left and right passage-side plate portions. It integrally has a lower flange portion. The passage bottom plate portion and the left and right passage side plate portions define a passage extending in the vehicle front-rear direction. The left and right passage bottom plate flange portions and the left and right passage side plate lower flange portions are overlapped in the vehicle width direction, are in surface contact, and are intermittently or continuously joined along the vehicle front-rear direction.

In the above configuration, since the left and right passage bottom plate flange portions are bent downward from both vehicle width direction end edges of the passage bottom plate portion, the surface rigidity of the passage floor panel (passage bottom plate portion) can be increased. In addition, the jointed passage bottom plate flange portion and passage side plate lower flange portion (lower joint flange portion) are thicker than the passage bottom plate portion, and extend in the vehicle front-rear direction on both sides of the passage bottom plate portion in the vehicle width direction. It functions like a rib that reinforces the passage bottom plate against the load. Therefore, the rigidity of the passage floor surface (passage bottom plate portion) can be increased without increasing the plate thickness of the passage floor panel or adding a reinforcing member.

In another aspect of the present disclosure, the passage bottom plate flange portion and the passage side plate lower flange portion are joined intermittently along the vehicle front-rear direction, and the passage bottom plate flange portion and the passage side plate lower flange portion are respectively joined on the left and right sides. Accordingly, left and right lower joint flange portions projecting downward and extending in the vehicle front-rear direction may be formed at the left and right edge portions of the passage bottom plate portion.

In still another aspect of the present disclosure, the left and right lower joint flange portions may be thicker than the passage bottom plate portion and may be formed as ribs that reinforce the passage bottom plate portion against the load from above.

According to the floor structure of the present disclosure, it is possible to increase the rigidity of the aisle floor surface while suppressing the increase in weight and cost of the cab.

FIG. 1 is a perspective view of a floor structure according to an embodiment of the present disclosure, viewed diagonally from above. FIG. 2 is a perspective view of the floor structure of FIG. 1 as viewed obliquely from below. FIG. 3 is a cross-sectional view taken along line III--III in FIG.

The vehicle according to the present embodiment is a cab-over type vehicle in which the cab is arranged above the power source (for example, the engine, electric motor, etc.). A mounting (packaging box in this embodiment) is mounted behind the cab. The rear surface of the compartment in the cab and the front surface of the cargo box are provided with openings (entrances) through which the cargo compartment in the cargo box can be accessed from the compartment.

An embodiment of the present disclosure will be described below with reference to the drawings. In the following description, the front-rear direction means the front-rear direction of the vehicle. In the drawings, the front and rear arrows indicate the front-rear direction of the vehicle, the up-down arrows indicate the up-down direction, and the left-right arrows indicate the width direction of the vehicle.　

　As shown in Figures 1 to 3, the lower part of the cabin 1 in the cab is defined by a floor panel 2. The floor panel 2 includes a front floor portion 3 extending rearward from a lower front end portion of the passenger compartment 1, and rear portions of the floor front portion 3 (right and left rear ends in this embodiment) disposed on both left and right sides behind the floor front portion 3. Left and right kick-up

portions

4L and 4R extending rearward and upward from the left and right edge portions 3B), and left and right floor rear portions 5L extending rearward from the upper portions of the left and right kick-up

portions

4L and 4R (left and right upper edge portions 4U in this embodiment). , 5R, a passage bottom plate portion 6 extending rearward from a central region in the vehicle width direction of the rear portion of the floor front portion 3, and left and right passage side plate portions 7L standing along left and right edge portions 6A of the passage bottom plate portion 6. , 7R. The floor front portion 3, the left and right floor

rear portions

5L and 5R, and the passage bottom plate portion 6 intersect in the vertical direction so that the upper surfaces of each of them form a substantially horizontal plane.

The front floor part 3 is arranged in front of the left and right front wheels (not shown) of the vehicle 1 and extends across the left and right sides of the floor panel 2 . The left and right kick-up

portions

4L and 4R are arranged above and in front of the left and right front wheels, are spaced apart from each other in the left and right direction, and extend obliquely upward and rearward from the rear end edges 3B on both the left and right sides of the front floor portion 3. As shown in FIG.

The left and right floor

rear parts

5L, 5R are arranged above the left and right front wheels, separated from each other in the left and right direction, and extend rearward from the upper end edges 4U of the left and right kick-up

parts

4L, 4R. The left and right floor

rear portions

5L and 5R are positioned rearward and upward of the floor front portion 3 and are arranged at approximately the same height. The vehicle width direction inner edge portions 5A of the left and right floor

rear portions

5L and 5R extend rearward continuously from the vehicle width direction inner edge portions 4A of the left and right kick-up

portions

4L and 4R. Left and right seats (not shown) on which passengers are seated are arranged above the left and right floor

rear parts

5L and 5R, respectively.

The passage bottom plate portion 6 forms the floor surface of a passage 8 extending in the longitudinal direction at the center of the vehicle compartment 1 (between the left and right seats) in the vehicle width direction. The passage bottom plate portion 6 is arranged at a height position lower than the left and right floor

rear portions

5L and 5R (in this embodiment, substantially the same height position as the floor front portion 3), and extends from the floor front portion 3 to the left and right kick-up portions. It extends to an entrance (not shown) on the rear surface of the passenger compartment 1 through between 4L and 4R and between left and right floor

rear parts

5L and 5R.

The left and right passage

side plate portions

7L, 7R are formed by the inner edge portions 4A of the left and right kick-up

portions

4L, 4R, the inner edge portions 5A of the left and right floor

rear portions

5L, 5R, and the left and right edge portions 6A of the passage bottom plate portion 6. block between The left and right passage-

side plate portions

7L, 7R extend rearward from the inner edge portions 4A of the left and right kick-up

portions

4L, 4R in the standing state. The passage bottom plate portion 6 and the left and right passage

side plate portions

7L and 7R define a passage 8 extending in the longitudinal direction of the vehicle.

As shown in FIGS. 2 and 3, the passage bottom plate portion 6 is composed of a passage floor panel 10. As shown in FIG. The passage floor panel 10 is integrally formed with a passage bottom plate portion 6 and left and right passage bottom

plate flange portions

11L and 11R bent downward from left and right edge portions 6A of the passage bottom plate portion 6. As shown in FIG.

The left and right passage-

side plate portions

7L, 7R are constituted by left and right passage-

side panels

12L, 12R, respectively. The left passage-side panel 12L includes a left passage-side plate portion 7L that stands on the left side (one side in the vehicle width direction) of the passage floor panel 10 and extends upward from the passage bottom plate portion 6, and a lower edge of the passage-side plate portion 7L. The left passage-side plate lower flange portion 13L extending downward from the left passage-side plate portion 7L and the left passage-side plate upper flange portion 14L bending outward (to the left) in the vehicle width direction from the edge portion extending from the front lower end to the rear upper end of the passage side plate portion 7L. integrally formed. The right passage-side panel 12R includes a right passage-side plate portion 7R standing on the right side (the other side in the vehicle width direction) of the passage floor panel 10 and extending upward from the passage bottom plate portion 6, and a lower edge of the passage-side plate portion 7R. A right passage-side plate lower flange portion 13R extending downward from the right passage-side plate portion 7R and a right passage-side plate upper flange portion 14R bending outward (to the right) in the vehicle width direction from an edge portion extending from the front lower end to the rear upper end of the passage side plate portion 7R. integrally formed. The left passage-side plate portion 7L and the passage-side plate lower flange portion 13L are planarly continuous, and the right passage-side plate portion 7R and the passage-side plate lower flange portion 13R are planarly continuous.

The left and right passage

side plate portions

7L, 7R and the passage side plate

lower flange portions

13L, 13R of the present embodiment are erected in a posture slightly inclined upward and outward in the vehicle width direction with respect to the vertical direction, and the left and right passage bottom plate flange portions 11L. , 11R are bent inward and downward in the vehicle width direction from left and right edge portions 6A of the passage bottom plate portion 6 along the left and right passage side plate

lower flange portions

13L, 13R. That is, the bending angles of the passage bottom

plate flange portions

11L and 11R with respect to the passage bottom plate portion 6 are slightly acute angles rather than right angles. The bending angles of the passage bottom

plate flange portions

11L and 11R are not limited to acute angles, and may be set to angles (including substantially right angles and obtuse angles) according to the postures of the passage bottom

plate flange portions

11L and 11R.

The left passage bottom plate flange portion 11L is overlapped with the left passage side plate lower flange portion 13L from the vehicle width direction inner side (right side) and is in surface contact, and is welded at a plurality of locations arranged at predetermined intervals in the vehicle front-rear direction (for example, spot welding). , to the left passage side plate lower flange portion 13L. The right passage bottom plate flange portion 11R is overlapped with the right passage side plate lower flange portion 13R from the vehicle width direction inner side (left side) and is in surface contact, and is welded at a plurality of locations (for example, spot welding) arranged at predetermined intervals in the vehicle front-rear direction. , to the right passage side plate lower flange portion 13R. That is, the left and right passage bottom

plate flange portions

11L, 11R and the left and right passage side plate

lower flange portions

13L, 13R are joined intermittently along the vehicle front-rear direction. The passage bottom

plate flange portions

11L and 11R and the passage side plate

lower flange portions

13L and 13R, which are respectively joined on the left and right sides, protrude downward at the left and right edge portions 6A of the passage bottom plate portion 6 and extend in the vehicle front-rear direction. Left and right lower

joint flange portions

15L and 15R are formed. The passage bottom

plate flange portions

11L, 11R and the passage side plate

lower flange portions

13L, 13R may be joined continuously along the vehicle front-rear direction.

As shown in FIG. 3, the rear region of the left passage-side plate upper flange portion 14L is in surface contact with the inner edge portion 5A of the left floor rear portion 5L from below, and is welded at a plurality of locations aligned in the vehicle front-rear direction. It is joined to the inner edge portion 5A of the left floor rear portion 5L by (for example, spot welding). The rear region of the right passage-side plate upper flange portion 14R is overlapped with the inner edge portion 5A of the right floor rear portion 5R from below and is in surface contact, and is welded (for example, spot welding) at a plurality of locations aligned in the vehicle front-rear direction. is joined to the inner edge portion 5A of the floor rear portion 5R.

Although not shown, the front region of the left passage-side plate upper flange portion 14L is in surface contact with the inner edge portion 4A of the left kick-up portion 4L from below, and is aligned in the vehicle front-rear direction. is joined to the inner edge portion 4A of the left kick-up portion 4L by welding (for example, spot welding). The front region of the right passage-side plate upper flange portion 14R is overlapped with the inner edge portion 4A of the right kick-up portion 4R from below and is in surface contact, and is welded (for example, spot welding) at a plurality of locations aligned in the vehicle front-rear direction. is joined to the inner edge portion 4A of the kick-up portion 4R.

According to this embodiment, since the left and right passage bottom

plate flange portions

11L and 11R are bent downward from the left and right edge portions 6A of the passage bottom plate portion 6, the surface rigidity of the passage floor panel 10 (passage bottom plate portion 6) is increased. can increase The joined passage bottom

plate flange portions

11L, 11R and the passage side plate

lower flange portions

13L, 13R (left and right lower

joint flange portions

15L, 15R) are thicker than the passage bottom plate portion 6 and It extends in the longitudinal direction of the vehicle on both sides and functions like a rib that reinforces the passage bottom plate portion 6 against the load from above. Therefore, the rigidity of the passage floor (passage bottom plate portion 6) can be increased without increasing the plate thickness of the passage floor panel 10 or adding a reinforcing member.

Although the present invention has been described above based on the above embodiments, the present invention is not limited to the contents of the above embodiments, and can be appropriately modified without departing from the scope of the present invention. In other words, all other embodiments, examples, operation techniques, etc. made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention.

For example, in the above embodiment, the passage-

side plate portions

7L, 7R and the passage-side plate

lower flange portions

13L, 13R are on the same plane. It may be bent downward.

This application is based on a Japanese patent application (Japanese Patent Application No. 2022-012311) filed on January 28, 2022, the contents of which are incorporated herein by reference.

The present disclosure can be widely applied to vehicles in which a passage is provided in the center in the vehicle width direction.

1: Vehicle interior 2: Floor panel 3: Front part of floor 3B: Left and right rear edge parts of the front part of the

floor

4L, 4R: Left and right kick-up parts 4U: Left and right upper edge parts of kick-up parts 4A: Left and right kick-up parts Inner edges of raised

portion

5L, 5R: Left and right floor rears 5A: Left and right floor inner edges 6: Passage bottom plate 6A: Left and right edges of passage

bottom plate

7L, 7R: Left and right passage side plates Part 8: Passage 10:

Passage floor panel

11L, 11R: Left and right passage

bottom plate flanges

12L, 12R: Left and right

passage side panels

13L, 13R: Left and right passage side plate

lower flanges

14L, 14R: Left and right passage side plate

upper flanges

15L, 15R: Left and right lower joint flanges

Claims

a passage floor panel integrally including a passage bottom plate portion crossing the vertical direction and left and right passage bottom plate flange portions bending downward from both vehicle width direction end edges of the passage bottom plate portion;
Left and right passage side plate portions that stand on both sides of the passage floor panel in the vehicle width direction and extend upward from the passage bottom plate portion, and left and right passage side plate lower flange portions that extend downward from lower edges of the left and right passage side plate portions. Left and right aisle side panels integrally having
The passage bottom plate portion and the left and right passage side plate portions define a passage extending in the vehicle front-rear direction,
The left and right passage bottom plate flange portions and the left and right passage side plate lower flange portions are overlapped in the vehicle width direction, are in surface contact, and are intermittently or continuously joined along the vehicle front-rear direction. Vehicle floor structure.
A vehicle floor structure according to claim 1,
The passage bottom plate flange portion and the passage side plate lower flange portion are joined intermittently along the vehicle front-rear direction,
The passage bottom plate flange portion and the passage side plate lower flange portion that are joined together on the left and right sides form left and right lower joint flange portions that protrude downward from left and right edge portions of the passage bottom plate portion and extend in the vehicle front-rear direction. A vehicle floor structure characterized by:
The vehicle floor structure according to claim 2,
The vehicle floor structure, wherein the left and right lower joint flange portions are thicker than the passage bottom plate portion and formed as ribs that reinforce the passage bottom plate portion against a load from above.